L01- Use Basic Scientific Measurements and Measurement tools Flashcards
What is the unit of measurement used in science?
metric system (SI units)
What is the unit of measurement for mass in SI units?
grams, kilograms (kg is the SI base unit)
What is the unit of measurement for length in SI units?
meters (ie. centimeters, mm)
What is the unit of measurement for volume in SI units?
solid: some meter^3
liquid: liters
What is the unit of measurement for time in SI units?
hours, minutes, seconds
What is the mnuemonic for unit prefizes to convert b/w metric units
King- kilo
Henry- hecta
Died- deca
mlg- 1.0
Drinking- deci
Chocolate- centi
Moon-milli
Milk- micro
What do we use to measure length?
ruler and meter stick
What is volume?
the amount of space an object occupies
What is used to measure volume?
* solid
* liquid
- solid: LxWxH
- liquid
large amounts of liquid (up to 1000 mL/ 1L or 20 L): volumetric flask is the most accurate and a graduated cylinder is intermediate precision
small amounts of liquid (< 10 mL-25 mL): volumetric pipette
What is used to measure mass (weight)
- electronic balance (MC) or triple beam balance
What is used to measure thickness?
caliper
What is used to measure force?
spring balance
What is used to measure time?
clock or stopwatch
What is used to measure air pressure?
barometer
What is the unit of measurement for body weight?
kg (1 lb = 0.45 kg)
What is the unit of measurement for the heart?
grams
What is the unit of measurement for body height?
* What other things can be measured with this unit?
- meters
- length of extremities and height of a door
What is the unit of measurement for the length of an insect?
What other things can use this unit of measurement?
- cm or mm
- thickness of skin or diameter of a vein
What is the unit of measurement for width of a fingernail?
mm
What is the unit of measurement for distance b/w 2 towns/ buildings
km
What is the unit of measurement for small amount of liquid?
mL
What is the unit of measurement for time (specifically lifespan)
days, months, years
What is the unit of measurement for time (number of breaths)?
- breaths per minute
What is the average mass of:
* a human
* a car
* a laptop
- 60 kg
- 1800 kg
- 2.5 kg